Space Engineers Dedicated Server: Admin Commands & SpaceEngineers-Dedicated.cfg Guide

Data Verified: May 2026

Definitive Space Engineers DSI guide. Configure SpaceEngineers-Dedicated.cfg, Sandbox_config.sbc, manage Workshop mods, and size hardware for stable multi-grid PCU-heavy servers.

Default file locations

Default installation paths for Space Engineers dedicated servers installed via SteamCMD.

Windows

C:\Users\<user>\AppData\Roaming\SpaceEngineersDedicated\

Linux

/home/steam/spaceengineers/

Pro-Tip: Always stop the server completely before editing configuration files, or the server will overwrite your changes upon restart.

Default ports for port forwarding

Open these on your router and firewall before exposing the server to the internet.

Default ports for Space Engineers
ServiceProtocolPort
Game PortUDP27016
Query PortUDP27016
RCON / TelnetTCP8080 (Remote API)

Quick start: launch your Space Engineers server

Copy-paste these two commands to install and start a Space Engineers dedicated server. Tested against SteamCMD on a fresh box.

Step 1, Install via SteamCMDSteam App ID 298740

# Keen Software House does not ship a native Linux dedicated server.

Step 2, Launch the Space Engineers server

# Linux operators run the Windows server under WINE or use Torch (a community wrapper).

Note: Most large SE communities run Torch on Windows Server for plugin support.

Step 1, Install via SteamCMDSteam App ID 298740

steamcmd +force_install_dir "C:\seserver" +login anonymous +app_update 298740 validate +quit

Step 2, Launch the Space Engineers server

C:\seserver\DedicatedServer64\SpaceEngineersDedicated.exe -console

Frequently asked questions

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Host your own Space Engineers server

All hosting guides →

Step-by-step install and deploy walkthroughs (panels, ports, RAM sizing). Pair these with the command reference above.